Image Classification Techniques in Remote Sensing

IMAGE CLASSIFICATION IN REMOTE SENSING Unsupervised, Supervised and Object-Based Techniques Unsupervised Classification Generate so Clusters Classify Iso Clusters Supervised Classification Create Develop Signature Training Set File 3 Classify Image Object-Based Classification Multi- Resolution Segmentation Add Feature Statistics 3 Assign Select Classes Samples Timeline Higher spatial resolution means Supervised Classification sophisticated image classification techniques 1960 1970 1980 1990 2000 2010 Unsupervised Classification Object-Based Image Analysis Remote Sensing Trends Data More Ubiquitous Higher Spatial Resolution RADAR DEM Infrared DSM Image Classification Publications Growth 70 - 60 - Object-Based 50 - 40 - Supervised 30 - 20 - 10 - Unsupervised 2006 2007 2008 2009 2010 2011 2012 2013 Sources: Blaschke T, 2010. Object based image analysis for remote sensing. ISPRS Journal of Photogrammetry and Remote Sensing 65 (2010) 2–16 Infographic created by: GISGeography.com